about 6 years ago, i had a tooth removed.
the local anaesthetic doesn't seem to work very well on me and it wasn't a comfortable experience.
(broken tooth, which broke even more, it got messy)
about half-way 'through' the dentist asked the nurse to pass him something, the nursed who didn't look well, fainted and fell over.
the dentist and i were splattered in my blood, but we both managed a little chuckle...
imagine my joy when i discovered that i need another tooth removed (either that or a root-canal)